Building Fertile Soil

Doreen G. Howard discusses the basis for building fertile soil for the garden, including information on no-till soil and permanent beds, mulch and cover crops.

Fertile soils should be about 50 percent air (shown in grey) and water (blue). Tiny mites, springtails and other critters move through the spaces, feeding on organic matter. (Drawing scale is 11 times actual size.)
Fertile soils should be about 50 percent air (shown in grey) and water (blue). Tiny mites, springtails and other critters move through the spaces, feeding on organic matter. (Drawing scale is 11 times actual size.)
MICHAEL ROTHMAN